title: Single nodular lesion on the scalp: a quiz. Diagnosis: nodular secondary syphilis.
authors.affiliation: Department of Dermatology, Ajou University School of Medicine, Yeongtong-Gu, Suwon-si, Kyeonggi-do, South Korea.
authors.forename: Yong Hyun
authors.initials: YH
authors.lastname: Jang
authors.forename: Ji Hyun
authors.initials: JH
authors.lastname: Sim
authors.forename: You Chan
authors.initials: YC
authors.lastname: Kim
authors.forename: Eun-So
authors.initials: ES
authors.lastname: Lee
mesh_terms: D000900:Anti-Bacterial Agents / Q000008:administration & dosage; D001706:Biopsy; D006801:Humans; D007273:Injections, Intramuscular; D008297:Male; D008875:Middle Aged; D010401:Penicillin G Benzathine / Q000008:administration & dosage; D012535:Scalp; D012867:Skin / Q000187:drug effects / Q000382:microbiology / Q000473:pathology*; D013591:Syphilis, Cutaneous / Q000175:diagnosis* / Q000188:drug therapy / Q000382:microbiology / Q000473:pathology; D016896:Treatment Outcome; D014210:Treponema pallidum / Q000302:isolation & purification
chemical_list: D000900:Anti-Bacterial Agents; D010401:Penicillin G Benzathine